Hello all, Very new to raising and caring for chickens. But I have discovered, they are very much my pets, a welcome addition to my family! Two days ago, my dog grabbed one of my girls in her mouth. I don't see any external puncture wounds or damage. However, her breathing is quite labourous. She hs not laid an egg since and was not on a perch after dark when I went to check last night, on the floor beside Roy.As far as I can tell she is not drinking or eating. I tried to hand feed her a strawberry this morn and she would have none of it. Her breathing is slightly raspy today as well. Seems to be getting worse. Am wondering if I should end her suffering or try to help her. We have some tetracycline 250. Should I mix a small amount and try a dropper to get some in her? Any other suggestions from experience, in what I can do to help her?